Developer Mode

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Collision renderer being toggled on in The Precursor Legacy via advanced debugging tools.

Developer mode, often called dev mode for short, is activated when the game boots with additional memory allocation, enabling advanced debugging tools that can be accessed via in-game menus. These debugging tools are available in the original Jak and Daxter trilogy, as well as Jak X: Combat Racing.

Technical

Activation of developer mode is toggled independently from the cheat mode variable. It relies entirely on whether extra memory is allocated for debugging tools or not.

The easiest way to play the game with debugging tools enabled is to boot the game using the 'Play in Debug Mode' boot option in the OpenGOAL launcher. Other methods include emulating the game with xTVaser's PCSX2 128MB build or booting the game in a PlayStation 2 TOOL (DTL-T10000H) development console.

Discovery

Glitches, Bugs, Exploits, and Secrets
Jak and Daxter: The Precursor Legacy Audio Pause Glitch • Boat Pause • Bridge Blast • Cheat Mode • Dark Glitch • Developer Mode • Developer Pictures • Drunk Cam • Dupe State • Easter Eggs • Flut Flut Escape • Game Crash • Ghost Glitch • Hard Fish • Idle Deload • Line Glitch • Moon Walk • Orb Duplication Glitch • Pause Buffer • Pause Cutscene Trigger • Punch Glitch • Statue Glitch • Texture Corruption • Void Out • Walking While Talking • Zombie Glitch • Zoomer Escape
Jak II Cheat Mode • Developer Mode • Developer Pictures • Easter Eggs • Game Crash • Ghost Town • Invisibility Glitch • Invulnerability Glitch • Line Glitch • Orb Duplication Glitch • Pause Buffer • Peacemaker Stacking • Percentage Warp • Punch Glitch • Stadium Bug • Statue Glitch • Zombie Glitch
Jak 3 Cheat Mode • Developer Mode • Developer Pictures • Easter Eggs • Game Crash • Invisibility Glitch • Invulnerability Glitch • Line Glitch • Orb Duplication Glitch • Peacemaker Stacking • Percentage Warp • Punch Glitch • Statue Glitch • Zombie Glitch
Jak X: Combat Racing Autosave Bug • Cheat Mode • Developer Mode • Easter Eggs • Line Glitch
Daxter Dream Orb • Easter Eggs • Palace Vase Orb • Teleporter Menu Storage
Jak and Daxter: The Lost Frontier Easter Eggs • Scene Player Skip